Tabelas para consultaTabela da distribuição t-studentGrau de liberdadeÁrea da cauda superior0,10,050,0250,010,00513,0786,31412,70631,82163,65721,8862,924,3036,9659,92531,6382,3533,1824,5415,84141,5332,1322,7763,7474,60451,4762,0152,5713,3654,03261,441,9432,4473,1433,70771,4151,8952,3652,9983,49981,3971,862,3062,8963,35591,3831,8332,2622,8213,25101,3721,8122,2282,7643,169111,3631,7962,2012,7183,106121,3561,7822,1792,6813,055131,351,7712,162,653,012141,3451,7612,1452,6242,977151,3411,7532,1312,6022,947161,3371,7462,122,5832,921171,3331,742,112,5672,898181,331,7342,1012,5522,878191,3281,7292,0932,5392,861201,3251,7252,0862,5282,845211,3231,7212,082,5182,831221,3211,7172,0742,5082,819231,3191,7142,0692,52,807241,3181,7112,0642,4922,797251,3161,7082,062,4852,787261,3151,7062,0562,4792,779271,3141,7032,0522,4732,771281,3131,7012,0482,4672,763291,3111,6992,0452,4622,756301,311,6972,0422,4572,75401,3031,6842,0212,4232,7041201,2891,6581,982,3582,6172001,2861,6531,9722,3452,601Tabela da distribuição Qui-quadrado Probabilidade (Xn2≥x)Grau de liberdadeÁrea na cauda superior0,250,10,050,0250,010,0050,00250,0010,000511,322,713,845,026,637,889,1410,8312,1222,774,615,997,389,2110,611,9813,8215,234,116,257,819,3511,3412,8414,3216,2717,7345,397,789,4911,1413,2814,8616,4218,472056,639,2411,0712,8315,0916,7518,3920,5222,1167,8410,6412,5914,4516,8118,5520,2522,4624,179,0412,0214,0716,0118,4820,2822,0424,3226,02810,2213,3615,5117,5320,0921,9523,7726,1227,87911,3914,6816,9219,0221,6723,5925,4627,8829,671012,5515,9918,3120,4823,2125,1927,1129,5931,421113,717,2819,6821,9224,7226,7628,7331,2633,141214,8518,5521,0323,3426,2228,330,3232,9134,821315,9819,8122,3624,7427,6929,8231,8834,5336,481417,1221,0623,6826,1229,1431,3233,4336,1238,111518,2522,312527,4930,5832,834,9537,739,721619,3723,5426,328,853234,2736,4639,2541,311720,4924,7727,5930,1933,4135,7237,9540,7942,881821,625,9928,8731,5334,8137,1639,4242,3144,431922,7227,230,1432,8536,1938,5840,8843,8245,972023,8328,4131,4134,1737,574042,3445,3147,52124,9329,6232,6735,4838,9341,443,7846,849,012226,0430,8133,9236,7840,2942,845,248,2750,512327,1432,0135,1738,0841,6444,1846,6249,73522428,2433,236,4239,3642,9845,5648,0351,1853,482529,3434,3837,6540,6544,3146,9349,4452,6254,952630,4335,5638,8941,9245,6448,2950,8354,0556,412731,5336,7440,1143,1946,9649,6452,2255,4857,862832,6237,9241,3444,4648,2850,9953,5956,8959,32933,7139,0942,5645,7249,5952,3454,9758,360,733034,840,2643,7746,9850,8953,6756,3359,762,163540,2246,0649,853,257,3460,2763,0866,6269,24045,6251,8155,7659,3463,6966,7769,773,476,094550,9857,5161,6665,4169,9673,1776,2280,0882,885056,3363,1767,571,4276,1579,4982,6686,6689,56100109,14118,5124,34129,56135,81140,17144,29149,45153,17Tabela da distribuição Normal padrãoProbabilidade da distribuição normal padrão acumulada na cauda superior - Prob(Z>Z0)Z0Segunda decimal de Z0.00,010,020,030,040,050,060,070,080,090,000,50,4960,4920,4880,4840,48010,47610,47210,46810,46410,100,46020,45620,45220,44830,44430,44040,43640,43250,42860,42470,200,42070,41680,41290,4090,40520,40130,39740,39360,38970,38590,300,38210,37830,37450,37070,36690,36320,35940,35570,3520,34830,400,34460,34090,33720,33360,330,32640,32280,31920,31560,31210,500,30850,3050,30150,29810,29460,29120,28770,28430,2810,27760,600,27430,27090,26760,26430,26110,25780,25460,25140,24830,24510,700,2420,23890,23580,23270,22960,22660,22360,22060,21770,21480,800,21190,2090,20610,20330,20050,19770,19490,19220,18940,18670,900,18410,18140,17880,17620,17360,17110,16850,1660,16350,16111,000,15870,15620,15390,15150,14920,14690,14460,14230,14010,13791,100,13570,13350,13140,12920,12710,12510,1230,1210,1190,1171,200,11510,11310,11120,10930,10750,10560,10380,1020,10030,09851,300,09680,09510,09340,09180,09010,08850,08690,08530,08380,08231,400,08080,07930,07780,07640,07490,07350,07210,07080,06940,06811,500,06680,06550,06430,0630,06180,06060,05940,05820,05710,05591,600,05480,05370,05260,05160,05050,04950,04850,04750,04650,04551,700,04460,04360,04270,04180,04090,04010,03920,03840,03750,03671,800,03590,03510,03440,03360,03290,03220,03140,03070,03010,02941,900,02870,02810,02740,02680,02620,02560,0250,02440,02390,02332,000,02280,02220,02170,02120,02070,02020,01970,01920,01880,01832,100,01790,01740,0170,01660,01620,01580,01540,0150,01460,01432,200,01390,01360,01320,01290,01250,01220,01190,01160,01130,0112,300,01070,01040,01020,00990,00960,00940,00910,00890,00870,00842,400,00820,0080,00780,00750,00730,00710,00690,00680,00660,00642,500,00620,0060,00590,00570,00550,00540,00520,00510,00490,00482,600,00470,00450,00440,00430,00410,0040,00390,00380,00370,00362,700,00350,00340,00330,00320,00310,0030,00290,00280,00270,00262,800,00260,00250,00240,00230,00230,00220,00210,00210,0020,00192,900,00190,00180,00180,00170,00160,00160,00150,00150,00140,00143,000,00130,00130,00130,00120,00120,00110,00110,00110,0010,0013,100,0010,00090,00090,00090,00080,00080,00080,00080,00070,00073,200,00070,00070,00060,00060,00060,00060,00060,00050,00050,00053,300,00050,00050,00050,00040,00040,00040,00040,00040,00040,00033,400,00030,00030,00030,00030,00030,00030,00030,00030,00030,00023,500,00020,00020,00020,00020,00020,00020,00020,00020,00020,00023,600,00020,00020,00010,00010,00010,00010,00010,00010,00010,00013,700,00010,00010,00010,00010,00010,00010,00010,00010,00010,00013,800,00010,00010,00010,00010,00010,00010,00010,00010,00010,00013,900,00000,00000,00000,00000,00000,00000,00000,00000,00000,00004,000,00000,00000,00000,00000,00000,00000,00000,00000,00000,0000 A média de um conjunto de dados com 1.600 registros é 4. Entretanto, constatou-se que as “não respostas” foram imputadas indevidamente como zero. Assim, os registros foram corrigidos a partir da substituição desses valores por “NR”, ou seja, retirando as “não respostas” do cálculo da média. A nova média obtida foi 5. Com base nas informações acima, conclui-se que a proporção de “não respostas” era de:

A média de um conjunto de dados com 1.600 registros é 4...

Q2421826

Estatística Média Aritmética

Ano: 2022

Banca: Fundação Getúlio Vargas - FGV

Prova: FGV - TJDFT - Analista Judiciário - Área Estatística - 2022

Tabelas para consulta

Tabela da distribuição t-student

Imagem associada para resolução da questão

Grau de liberdade	Área da cauda superior
Grau de liberdade	0,1	0,05	0,025	0,01	0,005
1	3,078	6,314	12,706	31,821	63,657
2	1,886	2,92	4,303	6,965	9,925
3	1,638	2,353	3,182	4,541	5,841
4	1,533	2,132	2,776	3,747	4,604
5	1,476	2,015	2,571	3,365	4,032
6	1,44	1,943	2,447	3,143	3,707
7	1,415	1,895	2,365	2,998	3,499
8	1,397	1,86	2,306	2,896	3,355
9	1,383	1,833	2,262	2,821	3,25
10	1,372	1,812	2,228	2,764	3,169
11	1,363	1,796	2,201	2,718	3,106
12	1,356	1,782	2,179	2,681	3,055
13	1,35	1,771	2,16	2,65	3,012
14	1,345	1,761	2,145	2,624	2,977
15	1,341	1,753	2,131	2,602	2,947
16	1,337	1,746	2,12	2,583	2,921
17	1,333	1,74	2,11	2,567	2,898
18	1,33	1,734	2,101	2,552	2,878
19	1,328	1,729	2,093	2,539	2,861
20	1,325	1,725	2,086	2,528	2,845
21	1,323	1,721	2,08	2,518	2,831
22	1,321	1,717	2,074	2,508	2,819
23	1,319	1,714	2,069	2,5	2,807
24	1,318	1,711	2,064	2,492	2,797
25	1,316	1,708	2,06	2,485	2,787
26	1,315	1,706	2,056	2,479	2,779
27	1,314	1,703	2,052	2,473	2,771
28	1,313	1,701	2,048	2,467	2,763
29	1,311	1,699	2,045	2,462	2,756
30	1,31	1,697	2,042	2,457	2,75
40	1,303	1,684	2,021	2,423	2,704
120	1,289	1,658	1,98	2,358	2,617
200	1,286	1,653	1,972	2,345	2,601

Tabela da distribuição Qui-quadrado

Imagem associada para resolução da questão

Probabilidade $(X_{n}^{2} \geq x)$

Grau de liberdade	Área na cauda superior
Grau de liberdade	0,25	0,1	0,05	0,025	0,01	0,005	0,0025	0,001	0,0005
1	1,32	2,71	3,84	5,02	6,63	7,88	9,14	10,83	12,12
2	2,77	4,61	5,99	7,38	9,21	10,6	11,98	13,82	15,2
3	4,11	6,25	7,81	9,35	11,34	12,84	14,32	16,27	17,73
4	5,39	7,78	9,49	11,14	13,28	14,86	16,42	18,47	20
5	6,63	9,24	11,07	12,83	15,09	16,75	18,39	20,52	22,11
6	7,84	10,64	12,59	14,45	16,81	18,55	20,25	22,46	24,1
7	9,04	12,02	14,07	16,01	18,48	20,28	22,04	24,32	26,02
8	10,22	13,36	15,51	17,53	20,09	21,95	23,77	26,12	27,87
9	11,39	14,68	16,92	19,02	21,67	23,59	25,46	27,88	29,67
10	12,55	15,99	18,31	20,48	23,21	25,19	27,11	29,59	31,42
11	13,7	17,28	19,68	21,92	24,72	26,76	28,73	31,26	33,14
12	14,85	18,55	21,03	23,34	26,22	28,3	30,32	32,91	34,82
13	15,98	19,81	22,36	24,74	27,69	29,82	31,88	34,53	36,48
14	17,12	21,06	23,68	26,12	29,14	31,32	33,43	36,12	38,11
15	18,25	22,31	25	27,49	30,58	32,8	34,95	37,7	39,72
16	19,37	23,54	26,3	28,85	32	34,27	36,46	39,25	41,31
17	20,49	24,77	27,59	30,19	33,41	35,72	37,95	40,79	42,88
18	21,6	25,99	28,87	31,53	34,81	37,16	39,42	42,31	44,43
19	22,72	27,2	30,14	32,85	36,19	38,58	40,88	43,82	45,97
20	23,83	28,41	31,41	34,17	37,57	40	42,34	45,31	47,5
21	24,93	29,62	32,67	35,48	38,93	41,4	43,78	46,8	49,01
22	26,04	30,81	33,92	36,78	40,29	42,8	45,2	48,27	50,51
23	27,14	32,01	35,17	38,08	41,64	44,18	46,62	49,73	52
24	28,24	33,2	36,42	39,36	42,98	45,56	48,03	51,18	53,48
25	29,34	34,38	37,65	40,65	44,31	46,93	49,44	52,62	54,95
26	30,43	35,56	38,89	41,92	45,64	48,29	50,83	54,05	56,41
27	31,53	36,74	40,11	43,19	46,96	49,64	52,22	55,48	57,86
28	32,62	37,92	41,34	44,46	48,28	50,99	53,59	56,89	59,3
29	33,71	39,09	42,56	45,72	49,59	52,34	54,97	58,3	60,73
30	34,8	40,26	43,77	46,98	50,89	53,67	56,33	59,7	62,16
35	40,22	46,06	49,8	53,2	57,34	60,27	63,08	66,62	69,2
40	45,62	51,81	55,76	59,34	63,69	66,77	69,7	73,4	76,09
45	50,98	57,51	61,66	65,41	69,96	73,17	76,22	80,08	82,88
50	56,33	63,17	67,5	71,42	76,15	79,49	82,66	86,66	89,56
100	109,14	118,5	124,34	129,56	135,81	140,17	144,29	149,45	153,17

Tabela da distribuição Normal padrão

Imagem associada para resolução da questão

Probabilidade da distribuição normal padrão acumulada na cauda superior - Prob(Z>Z₀)
Z₀	Segunda decimal de Z0
.	0	0,01	0,02	0,03	0,04	0,05	0,06	0,07	0,08	0,09
0,00	0,5	0,496	0,492	0,488	0,484	0,4801	0,4761	0,4721	0,4681	0,4641
0,10	0,4602	0,4562	0,4522	0,4483	0,4443	0,4404	0,4364	0,4325	0,4286	0,4247
0,20	0,4207	0,4168	0,4129	0,409	0,4052	0,4013	0,3974	0,3936	0,3897	0,3859
0,30	0,3821	0,3783	0,3745	0,3707	0,3669	0,3632	0,3594	0,3557	0,352	0,3483
0,40	0,3446	0,3409	0,3372	0,3336	0,33	0,3264	0,3228	0,3192	0,3156	0,3121
0,50	0,3085	0,305	0,3015	0,2981	0,2946	0,2912	0,2877	0,2843	0,281	0,2776
0,60	0,2743	0,2709	0,2676	0,2643	0,2611	0,2578	0,2546	0,2514	0,2483	0,2451
0,70	0,242	0,2389	0,2358	0,2327	0,2296	0,2266	0,2236	0,2206	0,2177	0,2148
0,80	0,2119	0,209	0,2061	0,2033	0,2005	0,1977	0,1949	0,1922	0,1894	0,1867
0,90	0,1841	0,1814	0,1788	0,1762	0,1736	0,1711	0,1685	0,166	0,1635	0,1611
1,00	0,1587	0,1562	0,1539	0,1515	0,1492	0,1469	0,1446	0,1423	0,1401	0,1379
1,10	0,1357	0,1335	0,1314	0,1292	0,1271	0,1251	0,123	0,121	0,119	0,117
1,20	0,1151	0,1131	0,1112	0,1093	0,1075	0,1056	0,1038	0,102	0,1003	0,0985
1,30	0,0968	0,0951	0,0934	0,0918	0,0901	0,0885	0,0869	0,0853	0,0838	0,0823
1,40	0,0808	0,0793	0,0778	0,0764	0,0749	0,0735	0,0721	0,0708	0,0694	0,0681
1,50	0,0668	0,0655	0,0643	0,063	0,0618	0,0606	0,0594	0,0582	0,0571	0,0559
1,60	0,0548	0,0537	0,0526	0,0516	0,0505	0,0495	0,0485	0,0475	0,0465	0,0455
1,70	0,0446	0,0436	0,0427	0,0418	0,0409	0,0401	0,0392	0,0384	0,0375	0,0367
1,80	0,0359	0,0351	0,0344	0,0336	0,0329	0,0322	0,0314	0,0307	0,0301	0,0294
1,90	0,0287	0,0281	0,0274	0,0268	0,0262	0,0256	0,025	0,0244	0,0239	0,0233
2,00	0,0228	0,0222	0,0217	0,0212	0,0207	0,0202	0,0197	0,0192	0,0188	0,0183
2,10	0,0179	0,0174	0,017	0,0166	0,0162	0,0158	0,0154	0,015	0,0146	0,0143
2,20	0,0139	0,0136	0,0132	0,0129	0,0125	0,0122	0,0119	0,0116	0,0113	0,011
2,30	0,0107	0,0104	0,0102	0,0099	0,0096	0,0094	0,0091	0,0089	0,0087	0,0084
2,40	0,0082	0,008	0,0078	0,0075	0,0073	0,0071	0,0069	0,0068	0,0066	0,0064
2,50	0,0062	0,006	0,0059	0,0057	0,0055	0,0054	0,0052	0,0051	0,0049	0,0048
2,60	0,0047	0,0045	0,0044	0,0043	0,0041	0,004	0,0039	0,0038	0,0037	0,0036
2,70	0,0035	0,0034	0,0033	0,0032	0,0031	0,003	0,0029	0,0028	0,0027	0,0026
2,80	0,0026	0,0025	0,0024	0,0023	0,0023	0,0022	0,0021	0,0021	0,002	0,0019
2,90	0,0019	0,0018	0,0018	0,0017	0,0016	0,0016	0,0015	0,0015	0,0014	0,0014
3,00	0,0013	0,0013	0,0013	0,0012	0,0012	0,0011	0,0011	0,0011	0,001	0,001
3,10	0,001	0,0009	0,0009	0,0009	0,0008	0,0008	0,0008	0,0008	0,0007	0,0007
3,20	0,0007	0,0007	0,0006	0,0006	0,0006	0,0006	0,0006	0,0005	0,0005	0,0005
3,30	0,0005	0,0005	0,0005	0,0004	0,0004	0,0004	0,0004	0,0004	0,0004	0,0003
3,40	0,0003	0,0003	0,0003	0,0003	0,0003	0,0003	0,0003	0,0003	0,0003	0,0002
3,50	0,0002	0,0002	0,0002	0,0002	0,0002	0,0002	0,0002	0,0002	0,0002	0,0002
3,60	0,0002	0,0002	0,0001	0,0001	0,0001	0,0001	0,0001	0,0001	0,0001	0,0001
3,70	0,0001	0,0001	0,0001	0,0001	0,0001	0,0001	0,0001	0,0001	0,0001	0,0001
3,80	0,0001	0,0001	0,0001	0,0001	0,0001	0,0001	0,0001	0,0001	0,0001	0,0001
3,90	0,0000	0,0000	0,0000	0,0000	0,0000	0,0000	0,0000	0,0000	0,0000	0,0000
4,00	0,0000	0,0000	0,0000	0,0000	0,0000	0,0000	0,0000	0,0000	0,0000	0,0000

A média de um conjunto de dados com 1.600 registros é 4. Entretanto, constatou-se que as “não respostas” foram imputadas indevidamente como zero. Assim, os registros foram corrigidos a partir da substituição desses valores por “NR”, ou seja, retirando as “não respostas” do cálculo da média. A nova média obtida foi 5.

Com base nas informações acima, conclui-se que a proporção de “não respostas” era de:

5%;

10%;

15%;

20%;

25%.

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